设计模式大题参考模板

1、5.2.某电影院售票系统为不同类型的用户提供了不同的电影票(CinemaTicket)打折方式(Discount)，学生凭学生证可享受8折优惠(StudentDiscount)，儿童可享受减免10元的优惠(ChildrenDiscount)， VIP用户除享受半价优惠外还可以进行积分(VIPDiscount)。选择一种合适的设计模式来设计该系统。（策略模式）/电影票类：环境类class MovieTicketprivate double price;private Discount discount;public void setPrice(double price)this.price =

2、price;public void setDiscount(Discount discount)this.discount = discount;public double getPrice()return discount.calculate(this.price);/折扣类：抽象策略类interface Discountpublic double calculate(double price);/学生折扣类：具体策略类class StudentDiscount implements Discount1 / 16public double calculate(double price)ret

3、urn price * 0.8;/儿童折扣类：具体策略类class ChildrenDiscount implements Discountpublic double calculate(double price)return price - 10;/VIP会员折扣类：具体策略类class VIPDiscount implements Discountpublic double calculate(double price)System.out.println("增加积分！");return price * 0.5;/客户端测试类class Clientpublic sta

4、tic void main(String args)MovieTicket mt = new MovieTicket();mt.setPrice(50.00);double currentPrice;Discount obj;obj = new StudentDiscount(); /可通过配置文件实现mt.setDiscount(obj);currentPrice = mt.getPrice();System.out.println("折后价为：" + currentPrice);System.out.println("-");obj = new VI

5、PDiscount();mt.setDiscount(obj);currentPrice = mt.getPrice();System.out.println("折后价为：" + currentPrice);public interface Count public abstract void discount(double a);public class CiTicket private Count disobj;public void discount(double a)disobj.discount(a);public void setdisobj(Count dis

6、obj)this.disobj=disobj;public class StTicket implements Countprivate double a;public void discount(double a)System.out.println("原价为"+a);this.a=a*0.8;System.out.println("学生票的票价为原价的8折:"+this.a);public class VTicket implements Countprivate double a;public void discount(double a)Syst

7、em.out.println("原价为"+a);this.a=a*0.5;System.out.println("VIP会员的票价为原价的半价:"+this.a);System.out.println("VIP会员的会员卡积分一次");public class ChTicket implements Count private double a;public void discount(double a)System.out.println("原价为"+a);this.a=a-10;System.out.print

8、ln("儿童票的票价为原价减10元:"+this.a);public class Client public static void main(String args) CiTicket c=new CiTicket(); Count d = new StTicket(); Count d1 = new ChTicket(); Count d2 = new VTicket(); d.discount(50); d1.discount(50); d2.discount(50); c.setdisobj(d); c.setdisobj(d1); c.setdisobj(d2);

9、 1. 使用简单工厂模式模拟女娲(Nvwa)造人(Person)，如果传入参数M，则返回一个Man对象，如果传入参数W，则返回一个Woman对象，请用面向对象的语言实现该场景。现需要增加一个新的Robot类，如果传入参数R，则返回一个Robot对象，对代码进行修改并注意女娲的变化。import javax.swing.JOptionPane;/* * 主要显示类 * author 陈俊生 * */public class Main /* * 主方法 * param arg */public static void main(String arg)/* * 提示输入 */*System.out.

10、println("请大家输入你想让女娲造的人的代号：");*/String str = ""/* * 当输入0时退出程序 */while(true)str = JOptionPane.showInputDialog("请大家输入你想让女娲造的人的代号：");NvWa nvWa = new NvWa(); Person person = nvWa.madeMan(str);person.play();/* * 男人类 * author 陈俊生 * */class Man extends Person Overridepublic voi

11、d play() / TODO Auto-generated method stub/*System.out.println("大家好，我是男人！我来自地球！");*/JOptionPane.showMessageDialog(null, "大家好，我是男人！我来自地球！");/* * 女娲类 * 简单工厂类 * author 陈俊生 * */class NvWa /* * 女娲造人方法 * param str 根据传递的参数进行造人 * return */public Person madeMan(String str)Person person =

12、null;switch (str) /* * 实例化男人 */case "M":person = new Man();break;/* * 实例化男人 */case "W":person = new Woman();break;/* * 实例化机器人 */case "R":person = new Robot();break;default:/*System.out.println("输入有误，女娲没这个能力造出你需要的人！");*/person = new Person();break;return person

13、;/* * 人类 * author 陈俊生 * */class Person /*private String name;/姓名private int age;/年龄*/* * 玩的方法 */public void play()JOptionPane.showMessageDialog(null, "输入有误，我还是一坨泥巴！女娲还没构造我！请重试");/* * 机器人类 * author 陈俊生 * */class Robot extends Person Overridepublic void play() / TODO Auto-generated method st

14、ub/*System.out.println("大家好，我是机器人！我来自火星！");*/JOptionPane.showMessageDialog(null, "大家好，我是机器人！我来自火星！");/* * 女人类 * author 陈俊生 * */class Woman extends Person Overridepublic void play() / TODO Auto-generated method stub/*System.out.println("大家好，我是女人！我来自水星！");*/JOptionPane.sh

15、owMessageDialog(null, "大家好，我是女人！我来自水星！");2.迟到的理由。（简单工厂和工厂模式）说明：根据迟到的理由不同，如：去厕所，在路上，回家等理由。当老师需要知道是何种理由迟到时只需传入相应的参数，现请使用简单工厂模式来模拟该过程。此外，如果有同学新增加一个“相亲”理由，为了遵循开闭原则，请使用工厂模式模拟上述过程。简单工厂模式import javax.xml.parsers.*;import org.w3c.dom.*;import java.io.*;public class XMLUtilReason /该方法用于从XML配置文件中提取品

16、牌名称，并返回该品牌名称public static String getexcuse()try/创建文档对象DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();DocumentBuilder builder = dFactory.newDocumentBuilder();Document doc;doc = builder.parse(new File("configReason.xml"); /获取包含品牌名称的文本节点NodeList nl = doc.getElementsByT

17、agName("excuse"); Node classNode=nl.item(0).getFirstChild(); String excuse=classNode.getNodeValue().trim(); return excuse; catch(Exception e) e.printStackTrace(); return null; public abstract class AbstractReason public abstract void reason();public class GoHome extends AbstractReason publ

18、ic void reason() System.out.println("Go Home!");public class GoToilet extends AbstractReason public void reason() System.out.println("Go to Toilet!");public class OnTheWay extends AbstractReason public void reason() System.out.println("On The Way!");public class ReasonF

19、actory public static AbstractReason produceReason (String excuse) throws Exceptionif(excuse.equalsIgnoreCase("Toilet")System.out.println("The ReasonFactory produces the reason of Toilet!");return new GoToilet();else if(excuse.equalsIgnoreCase("Home")System.out.println(&

20、quot;The ReasonFactory produces the reason of go home");return new GoHome();else if(excuse.equalsIgnoreCase("OnTheWay")System.out.println("The ReasonFactory produces the reason of on the way!");return new OnTheWay();else throw new Exception("Sorry! The reason is not tru

21、e!");public class Client_xml public static void main(String args) try AbstractReason abstractreason; String excuse=XMLUtilReason.getexcuse(); abstractreason=ReasonFduceReason(excuse); /abstractreason=ReasonFduceReason ("Home"); abstractreason.reason(); catch(Except

22、ion e) System.out.println(e.getMessage(); public class Client public static void main(String args) try AbstractReason abstractreason; abstractreason=ReasonFduceReason ("Toilet"); abstractreason.reason(); catch(Exception e) System.out.println(e.getMessage(); 3.简历题目（浅克隆）需要有一个简历类，必须

23、要有姓名，可以设置性别和年龄，可以设置工作经历。最终需要三份简历。public class Resume implements Cloneable private String name;private String sex;private String age; private WorkExperience workexperience=null; public Resume(String name)=name;this.workexperience=new WorkExperience();public void setName(String name)

24、=name;public void setPersonalInfo(String sex, String age)this.sex=sex;this.age=age;public String getName()return ();public String getSex()return(this.sex);public String getAge()return(this.age);public void setWorkExperience(String workDate, String Company)workexperience.setworkDate(workDate

25、);workexperience.setCompany(Company);public WorkExperience getWorkExperience()return this.workexperience;public Object clone()Resume clone=null;tryclone=(Resume)super.clone(); catch(CloneNotSupportedException e) System.out.println("Clone failure!"); return clone;public void display() Syste

26、m.out.println("Resume:"+" "+this.getName()+" "+this.getAge()+" "+this.getSex(); System.out.println("Experience:"+" "+workexperience.getworkDate()+" "+workexperience.getCompany();public class WorkExperience private String workDate;

27、private String Company;public void setworkDate(String workDate)this.workDate=workDate;public void setCompany(String Company)this.Company=Company;public String getworkDate()return (this.workDate);public String getCompany()return(this.Company);public class Client public static void main(String args) R

28、esume resume,copy1,copy2; resume=new Resume("zhangsan"); resume.setPersonalInfo("male", "25"); resume.setWorkExperience("1995-1997","Company1"); copy1=(Resume)resume.clone(); copy2=(Resume)resume.clone(); resume.display(); copy1.setName("lisi&qu

29、ot;); copy1.setWorkExperience("2004-2007","Company2"); copy1.display(); copy2.setPersonalInfo("female", "30"); copy2.display(); System.out.println(resume=copy1); System.out.println(copy1=copy2); System.out.println(resume.getWorkExperience()=copy1.getWorkExperi

30、ence(); System.out.println(copy1.getWorkExperience()=copy2.getWorkExperience(); 陈俊生版public class Resume implements Cloneableprivate String name;/姓名private String sex;/性别private int age;/年龄private WorkExperience we ;/工作经历public Resume()this.we = new WorkExperience();/* * 姓名 * return */public String g

31、etName()return name;public void setName(String name) = name;/* * 性别 * return */public String getSex() return sex;public void setSex(String sex) this.sex = sex;/* * 年龄 * return */public int getAge() return age;public void setAge(int age) this.age = age;/* * 获取工作经历对象 */public WorkExperience g

32、etWorkExperience()return we;Overridepublic Object clone()/ TODO Auto-generated method stubResume resume = null;try resume = (Resume)super.clone(); catch (CloneNotSupportedException e) / TODO: handle exceptionJOptionPane.showMessageDialog(null, "克隆失败！");e.printStackTrace();return resume;public class WorkExperience public void setWorkExperience(String str)JOptionPane.showMessageDialog(null, "设置成功n"+str);public static void main(String args) / TODO Auto-generated method stub